I this weird attitude goes for other stuff too.
I like a nice sirloin steak. DH has started to like it too (he was brought up eating steak cooked in the oven 😱) and didn't realise that when properly cooked in a frying pan/skillet with butter and garlic that it's actually amazing.
The kids (8, 10 and 13) absolutely love a sirloin as well.
The local butcher and assistant (older, as I believe it's more often a generational thing) were horrified when I ordered 5 sirloins for DH, I and the kids.
Butcher: "Oh no, you'll need sausages for the kids"
::assistants agrees and goes to grab sausages::
Me: "No thanks, definitely steaks please."
Butcher:"How about a bit of mince instead? They'll eat that fried up and a bit of gravy!"
Assistant: "Yeah you don't need steaks. Kids should have a nice burger or something!"
Reader, I got my damn steaks and we all enjoyed the hell out of them! DS 8 probably ate more than the rest of us as he's meat mad.
I know a few folk of that same era who have a similar belief. Sausages for the man and just egg for the wife and kids. Or Steak for the man and a bit of mince for the rest. There was no need, plenty of budget for all but it was a given that it's how it should be at dinner. Very strange. It was mainly MIL's DM and MIL's friends who were/are like that. (Scottish village if it makes any difference)
But not back home for us in Northern England as far as my mum says. Penis portions were a thing but not usually different foods for the man.